Impact wrench



FIG. 1 is a front elevational view of an impact wrench showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines shown in the drawings illustrate portions of the impact wrench that form no part of the claimed design. 

CLAIM The ornamental design for an impact wrench, as shown and described. 